Yesterday saw the return of two pop behemoths: in the baby-blue, infantilised sex appeal corner stands Katy Perry, in the neon-hued, high-fashion low-art corner stands Lady Gaga. The tabloid copy writes itself: but is the music any good? Check out both offerings below and let us know who your money is on winning this latest arms race of mega-pop.
Lady Gaga's 'Applause'
Katy Perry's 'Roar'